Steam-shovel



(Nb Model.) 1:'. C'. STARKE 81; P. J. CROWLEY.

STEAM SHOVEL.

Patented Peb6,1883.

N. PETERS. Phala- UNITED STATES v PATENT @Erica FRED C. STARKE AND PETERJ. CROWLEY', OF MILWAUKEE, WISCONSIN.

STEAM-SHO-VEL.

`SPE@IFICATIIION forming part of Letters Patent No. 271,939, datedFebruary 6, 1883.

` Application filed November 23,1882. (no model.)

To all whom it may concern:

Be it known `that we, FRED C. STARKE and PETER J. GROWLEY, both ofMilwaukee, in the county of Milwaukee, and in the State ot'Wisconsin,have invented certain new and usefullmprovements inSteamfShovels; and we do hereby declare that the following is a full,clear, and exact description thereof.

Our invention relates to shovels actuated by steam or other power; andit consists chiedy in improvements on the devices patented to us on theth of September, 1882, numbered 263,986, all as will be moreparticularlyset forth hereinafter. Y i

In the drawings, Figure l represents in perspective our entire improveddevice. Fig. 2 is a bottom view of ourimprovedishovel and bucket, andFig.-3 is adetail view of a modified form .of attachment ofthe partslast named. i

A is the shovel proper, made as iu our prior patent with dat bottom andwith side anges,

HA A', and a central llange or ridge, A2; but

B isthe bail of the shovel, and its arms pass i down on each side ofthecentral ange, A2, through holes a' et' in the gutters a a; butinstead of being solidly united within a countersunk groove, as before,we now prefer to perforate the bii'urcated endsof said bail, and

35 journal them upona pivot,b,extendin g across both holes a" a', asshown. Our central ridge, 'which is of generally tapering form, widestat the base, is cut away at this point, so as to have vertical sides,and near its top we provide a row otl holes, a2 a2; and we provide ourbail with corresponding holes, b2, and employ a pin, b', so that wemayvary the angle of inclination of our said `bail and adjust it rigidlyto any inclination required. y

As stated in our prior patent, for use in mines or on the surface of theearth, a wholly smooth bottom for the shovel is best; but for use upon adoor or `the dpf'ck ot' a vessel or elsewhere where there mayilbeinequalities of surface'it will prove advantageousto add a rollerbeneath the rear end of our shovel. This roller (l isjournaled in lugs cc, and may be located either partly within la transverse groove, as inour patent named, or be wholl y q below the bottom surface of theshovel, as desired. p

We provide our improved shovel with a backward-extending shelf, A3,projecting beyond the rear edge of the flanges A' A' A2, and along theinner edge of this shelf (which is integral with the bottom of theshovel, but of less depth or thickness, and which tapers off to a thinouter edge) we hinge a Hap or apron, A, which in its normal uprightposition, when the shovel is empty, closes the rear of said shovel, asshown in Fig. l, rising preferably to aboutthe height ofthe centralflange, A2.

On each side of the shovel there are attached to the'outer sides of theanges A' A' loops or staples `a3 a3; but these are placed fartherforward than in our said patent, and should preferably be locatedforward of the vertical line of the roller C, so as to insure thedownour bucket or receiver D, to be next described. y

This bucket, like that already patented, consists principally ot' anarrow transverse oblong bottom, d, daring ends d' d', and verticalsides d2 d2. It has also the central upright row of loops or staples, d4614014, attached to the rear flaring endpiece, d', and the hoistingbailE, locking-pin F, and locking plate or link F', all as described in saidpatent, and preferablylsimilar rollers D' D'. Our manner of attachmentof bucket and shovel, however, is entirely different from our patenteddevice. In place ot' the simple loops or staples d3 shown in saidpatent, we now Jform longloops d3, either round, as shown in Figs. l and2, or

dat, as in Fig. 3; and in place ot' the short chains and hooksc2 shownin our` patent, we

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now substitute stift' rods u2, secured to the ICG ceive the hooked endsofthe rods c2; but the same effect can be secured by4 substitutingsquare or flat metal for round inthe construction of the long loops d3,and,then dispensing with the rod d6, provide sliding blocks, with ringsor staples at their bases, in place of the links d5, as shown in thedetail view, Fig. 3. y p

Our presentdevice may be used either with or without a governor, G; butwe have here shown one of the same general construction as that in thepatent named, having roller g and loops or shaft g and g2 at front andrear, respectively, the former being for the attachment of said governorby chain or cable g3 to the bucket, and the latter to receive the endot' the rear power-cable, H. Vhen the governor is dispensed with, thesaid power-cable would be attached to one of the rear loops d4 of thebucket D in place of the cable g3, as shown in the, drawings, while thefront powercable, I, is always 'to be attached to the loop in thedraft-bail B of the shovel. l

When our device is to be pulled forward into the mass of coal, ore, orother material, the bucket and shovel are connected together in themanner and relative positions shown in Fig. l, with the apron A4 closingthe rear end of our shovel,and with the forward end, d', of our bucketresting securely upon'the shelf A3; but as the shovel receives its loadand` continues to advance, its contents will thereby becometransferredinto the bucket, this action automatically forcing down theapron A4 on the shovel within the bucket, thus -effectually covering thepoint of connection of these two parts and preventing any of the coal,ore, or other materials from dropping down between them, and therebyinterfering with the successful operation of our device.

With our patented device, when we employed short chains or links a? andconnected the hooks at the ends ot said chains with the short l loops orstaples d3 at the extreme ends of ythe sliding blocks d5, (shown in Fig.3,) without,

altering the position of our bucket at all; and hence it is quiteimmaterial whether the bucket is resting on its bottom (in which casethe links or sliding blocks d5 would be at the extreme right-hand endsor lowest parts of the long loops d3) or tilted forward, as shown inFig. 1, (when the said links or blocks would be at the extremeleft-haiid ends or highest parts ot' said long loops.) or anywherebetween, so far as the attachment is concerned, which is almostinstantaneous, and then the links or blocks will slide forward along thelong loops as power is applied to the cable I, and as the shovel ispulled forward the bucket is automatically pulled down until its forwardend rests on the described shelf A3 of the shovel, exactly as shown inFig. l, and, as our bucket (being made of boiler-iron) is exceedinglyheavy, this feature is of great value in the saving of time and labor inthe mere couplngof these two parts alone. l

We have found that by making the central flange, A2, higher than theside flanges, A A. as in our patent,there was a tending to spill thecontents of the shovel over the sides; and hence we now make the saidcentral ange lower than the others; and in fact we find th-.it we maypracticallydispense with this central flange from a point just backofthe bail attachment without interfering with the successful operationof our shovel; but whereit is employed it is necessary that it should bemade lower than the others to guard against the dangerofspilling, abovereferred to; and hence we may sometimes dispense altogether with ourcentral flan-ge and attach the bail B to the side anges, (byperforations and pins,) al though we prefer the arrangement shown.

Having thus described our invention, what we claim as new, and desiretosecure by Letters Patent, is- 1.`

1. A steam-shovel having flat bottom and side lianges and a low centralflange for the attachment of a bail and rear projecting shelf,substantially as set forth.

2. A steam-shovel having flat bottom and upright anges, a bail forattachment of a power-cable, a rear projecting shelf, and a hinged apronfor closing the rear of said shovel, substantially as set forth.

.3.' A steam-shovel having flat bottom and side an ges, and a lowcentral liange provided with holes a? a2, a draft-bail pivoted in slotsin the bottom of the shovel and adapted to straddle the central Hange,and having holes corresponding to the holes in said flange, and alocking-pier, whereby the inclination of the bail may be adjusted atwill and xedin said inclination, substantially as set forth.

4. A steam-shovel having iiat bottom and upright flanges, an adjustabledraft-bail anda roller placed underneath the rear end, and staples a3asyplaced forward of the vertical line of the roller, whereby thedownward pitch ofA the point of thesaidshovel is secured when it isattached to a receiver or bucket, substantially as set forth.

5. The bucket. or receiver D, having dat oblong transverse bottom,Haring ends, and straight sides, provided along their forward lowerparts with the long loops or staples d3, and links or sliding blocks d5,for the attach-v ment ot' a steam-shovel, irrespective ofthe position ofthe, bucket, substantially as set forth.

6. The combination of the shovel A, having at bottom and uprightflanges, adjustable draft-bail B, shelf A3, and hinged apron A,`

